Ruby | Matrix ** method

The ** is an inbuilt method in Ruby returns the matrix after the matrix is multiplied with self N times. It returns the matrix exponentiation value.

Syntax: Matrix_name ** (number)

Parameters: The function takes a mandatory parameter number which signifies the number of times it will be multiplied with self.

Return Value: It returns the resultant matrix after multiplication.

Example 1:

# Ruby program for ** method in Matrix
# Include matrix
require "matrix"

# Initialize a matrix
mat = Matrix[[12,41], [61,81]]

# Prints the matrix value after
# multiplying it 3 times with self
puts  mat ** 3

Output:

Matrix[[264333, 417298], [620858, 966615]]

Example 2:

# Ruby program for ** method in Matrix
# Include matrix
require "matrix"

# Initialize a matrix
mat = Matrix[[1, 2, 6], [3, 4, 8], [12, 1, 3]]

# Prints the matrix value after
# multiplying it 2 times with self
puts  mat ** 2

Output:

Matrix[[79, 16, 40], [111, 30, 74], [51, 31, 89]]